The writing process for the majority of Metallicaâs albums have followed the same process. A large slew of guitar riffs written primarily by James Hetfield, sometimes Kirk Hammett, and rarely the bandâs bass player, (that now being bass virtuoso Robert Trujillo) are reviewed and selected.
1 Delhi is most polluted city in the world in PM2.5 concentrations. 2  Half of the top 20 most polluted cities were in India, according to data.  PM2.5 is considered most harmful to health.
Numerous rivers in Vietnam are polluted, but larger rivers like the Saigon are seriously polluted. Currently, only about 60% of the Vietnamese people have access to water that is clean and drinkable. Barely over half of the population are able to acquire unpolluted and hygienic water.